Feature:1. UPGRADED DISC: This grinding disc is more heat resistant, more incisive, and more wear resistant for the cutting work, providing improved working efficiency!2. SAFE TO USE: High manganese steel base and diamond disc is adopted for long term use, which can withstand continuous work in humid and dry environments.3. WIDE APPLICATION: The disc is widely used for light cutting, chamfering and polishing of glass, jadestone, wine bottles, ceramics, ceramic tiles and other materials.4. EASY TO INSTALL: The disc is small and compact in size, light in weight as well, making the disc easy to install, easy to replace.5. 2PCS: There are 2 pieces grinding discs in the package that suitable for long term use and make replacements.Specification:Item Type: Glass Cutting DiscMaterial: High Manganese Steel, DiamondOuter Diameter: Approx.100mm (3.94 inches)Inner Diameter: Approx.20mm (0.79 inch)Corundum: Approx.15mm wide (0.59 inches)Thickness: Approx.1mm (0.04 inch)Scope of Application: Glass, ceramic tile, jadestone, wine bottle polishing, cutting.Package List:2 xGlass Cutting Disc